用相关法测量自调匀整开环控制器中的延时  

Measurement of the Open-Loop Autoleveller's Time Delay with Correlation Method

作　　者：张贵宝[1] 李从心[1] 李加文[1] 蔡旺[1] 

机构地区：[1]上海交通大学模具CAD国家工程研究中心,上海200030

出　　处：《青岛大学学报（工程技术版）》2006年第2期12-15,共4页Journal of Qingdao University(Engineering & Technology Edition)

摘　　要：延时控制是决定机后开环自调匀整控制器控制效果的关键因素,确定延时是控制器设计和纱厂生产中非常重要的环节。目前文献中常见的求延时的方法有几何法和试验法,但几何法精度有限,试验法操作繁琐。本文提出一种用相关分析求延时的方法,该方法利用控制系统现有的输入、输出棉层(棉条)线密度、牵伸比数据来求延时,准确、经济,易操作。The open-loop autoleveller＇s time-delay is a key factor of the control effect, so it is a very important process to get the time delay in the cotton mill. At present, two methods are commonly discussed in papers, one is the geometric method and the other is the experimental method, the precision of the geometric method is not high and the experimental method is not easy to operate. A correlation analysis method is put forward in this paper; it gets the time-delay with the input, output sliver＇s densities and the ratio of drawing. It is proved to be accurate, economic and easy to operate.

关 键 词：自调匀整 开环控制 延时 相关测量 

分 类 号：TS103.7[轻工技术与工程—纺织工程]